| crd | Completely Randomized Design (CRD) | 
| ess_model | Model-based Effective Sample Size (ESS) | 
| ess_rand | Randomization-based Effective Sample Size (ESS) | 
| fsm | Finite Selection Model (FSM) | 
| fsm_batch | Batched FSM for sequential experiments | 
| Lalonde | The Lalonde experimental dataset | 
| love_plot | Love plot | 
| make_sq_inter | Squares and two-way interactions of variables | 
| perm_test | Fisher's randomization test for sharp null hypothesis. | 
| som | Selection Order Matrix (SOM) | 
| tasmd_rand | Target Absolute Standardized Mean Differences (TASMD) |